Clamp



FIG. 1 is a front elevational view of a clamp showing my new design, the rear being a mirror image thereof;

FIG. 2 is a side elevational view taken from the right of FIG. 1;

FIG. 3 is a top plan view, the bottom being a mirror image thereof;

FIG. 4 is a sectional view taken in the direction of the arrows on line IV--IV of FIG. 1. 

The ornamental design for a clamp, as shown and described. 